1. Facebook is big on video: According to Facebook’s last earnings report, Facebook users watch 100 million hours of video daily. Facebook now emphasizes video in their ads platform, and is rolling out live video broadcasting (think Periscope in your news feed) to ordinary users, not just public figures and news publishers.

2. The “like” button will never be the same: Facebook revamped its “like” button, enabling users to express several reactions and emotions through emoji-like buttons.

4. Algorithm changes, virtual reality and more: Facebook now relies on qualitative feedback to ensure that relevant content gets served up to users. Facebook is also preparing for virtual reality, and new tools to help nonprofits raise money are coming. Messenger will also be changed in 2016.

TL;DR (too long; didn’t read): If you’re not producing brief videos that are optimized for Facebook consider it. Stay tuned to see how changes to the “like” button will affect brand managers and users.

Instagram

5. Ads are here: If you’re an Instagram user, you’ve noticed that sponsored posts in your feed have skyrocketed.

After Facebook bought Instagram, brands could advertise on Instagram to meet three goals: website clicks, video views and app installs. If you know how to set up an ad on Facebook, you don’t have to learn a new ad platform for Instagram. Instagram ads can be set up on Facebook’s ads manager or power editor.

7.Boomerang: Late last year, Instagram debuted this video app that creates a one-second, looping video.

8. A new video metric: Instagram added a new metric on Feb. 24 to its video view counts. Now users can see how many times their videos are shared on the app. Wondering what counts as a view? A whole three seconds.

TL;DR: Marketers familiar with Facebook advertising and brand managers with compelling photo and video content should be excited about Instagram’s advertising opportunities. The ability to manage multiple brand accounts is also finally here.

Twitter

9. An algorithm-based timeline: Will this be the change that gives Twitter new life, or is it another nail in its coffin?

In a major shift from its traditional timeline, Twitter introduced a new timeline, in which the most popular tweets displace the most recent tweets at the top of the timeline. Users can opt-in, but all signs point to this change becoming platform-wide soon.

10. Prepare for longer tweets: Rumors hint at the removal of the 140-character limit for tweets. This might be welcome to social media managers who struggle to sum up their brand message succinctly. Veteran users don’t seem happy about it.

TL;DR: Twitter is trying to balance its desperate need to add users with keeping its current users happy. Many find Twitter confusing and hard to use. #RIPTwitter?

LinkedIn

12. LinkedIn focuses on mobile. LinkedIn has been silent on major changes for 2016, but kicked off the year with a new app design for iOS and Android.

The design’s simplicity in theory makes it easier for users to find relevant content. LinkedIn also made search faster and its message feature more conspicuous.

Snapchat

13. Share your account’s link: One of the big complaints from new Snapchat users is that the app is hard to use, and finding people on Snapchat isn’t as intuitive as on Twitter or Facebook.

Snapchat users can now add new friends by location, username or Snapcode. They can also share their usernames with a URL.

14. Video messaging is coming soon. Snapchat users view 6 billion videos a day. Though you can video-message users on Snapchat, it isn’t easy. It’s reported that Snapchat is working on a major redesign of this feature.

You might ask yourself why this matters. The answer is predictable: money. Snapchat monetized itself with advertising and is looking for other revenue.